Bases: guiqwt.plot.ImageDialog, taurus.qt.qtgui.base.taurusbase.TaurusBaseWidget
This is a widget for displaying trends from 1D Taurus attributes (i.e., representing the variation over time of a 1D array). Sometimes this kind of plots are also known as “spectrograms”.
The widget shows a 3D plot (Z represented with colors) where the values in the 1D array are plotted in the Y-Z plane and are stacked along the X axis.
returns the maximum number of events that can be plotted in the trend
Return type: | :class:~`int` |
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Returns: |
reimplemented from TaurusBaseWidget
reimplemented from TaurusBaseWidget
reimplemented from TaurusBaseWidget
whether TaurusTrend is looking for data in the archiver when needed
Return type: | :class:~`bool` |
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Returns: |
See also
returns the maximum number of events that can be plotted in the trend
Return type: | :class:~`int` |
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Returns: |
reimplemented from TaurusBaseWidget
whether the user can change the contents of the widget
Return type: | :class:~`bool` |
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Returns: | True if the user is allowed to modify the look&feel |
Same as setMaxDataBufferSize(512) (i.e. 512 events)
Same as setUseArchiving(False)
sets the maximum number of events that will be stacked
Parameters: | maxSize (:class:~`int`) – the maximum limit |
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See also
TaurusTrendSet
reimplemented from TaurusBaseWidget
reimplemented from TaurusBaseWidget
set the type of stack to be used. This determines how X values are interpreted:
- as timestamps (‘datetime’)
- as time deltas (‘timedelta’)
- as event numbers (‘event’)
Parameters: | mode (:class:~`one of ‘datetime’, ‘timedelta’` or :class:~`’event’`) – |
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enables/disables looking up in the archiver for data stored before the Trend was started
Parameters: | enable (:class:~`bool`) – if True, archiving values will be used if available |
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whether TaurusTrend is looking for data in the archiver when needed
Return type: | :class:~`bool` |
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Returns: |
See also